pcs: Privilege escalation via authorized user malicious REST call
Published Apr 12, 2018
8.7
HIGHCVSS 3.0
EPSS 1.06%
Description
pcs before version 0.9.164 and 0.10 is vulnerable to a privilege escalation via authorized user malicious REST call. The REST interface of the pcsd service did not properly sanitize the file name from the /remote/put_file query. If the /etc/booth directory exists, an authenticated attacker with write permissions could create or overwrite arbitrary files with arbitrary data outside of the /etc/booth directory, in the context of the pcsd process.
Affected products
- Vendor n/a Product Pcs Defaultn/a
- Version pcs 0.10StatusaffectedConstraints-
- Version pcs 0.9.164StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n/a | Pcs | n/a |
|
Configuration 1
- ≤ 0.9.164
- 0.10
Configuration 2
- 7.0
- 7.5
No data.
Red Hat Enterprise Linux 7
pcs-0:0.9.162-5.el7_5.1
Fixed · RHSA-2018:1060
Red Hat Enterprise Linux 6
pcs
Not affected
Red Hat Enterprise Linux 8
pcs
Not affected
Red Hat Storage 3
pcs
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | pcs-0:0.9.162-5.el7_5.1 | Fixed | RHSA-2018:1060 |
| Red Hat Enterprise Linux 6 | pcs | Not affected | n/a |
| Red Hat Enterprise Linux 8 | pcs | Not affected | n/a |
| Red Hat Storage 3 | pcs | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
AV:N/AC:L/Au:S/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.06% (0.01063) | 63.39th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.08% (0.01084) | 63.73th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00068) | 30.16th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.07% (0.00068) | 29.58th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.07% (0.00068) | 27.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 25.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (6)
- https://access.redhat.com/errata/RHSA-2018:1060 x_refsource_MISCThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-1079 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1550243 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1079 x_refsource_MISCIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-1079
- https://www.cve.org/CVERecord?id=CVE-2018-1079
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:1060 | x_refsource_MISCThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-1079 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1550243 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1079 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-1079 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-1079 |
Change history (0)
No recorded changes yet.